Get Previous page URL in ASP.Net

hello sir,

i am having a doubt in retriving previous page URL.

I am using below code to get previous page URL. It working fine on my local machine. but i have not tested on live server since my company have not yet purchase SSL certification.

all my pages are SSL certified (HTTPS).

I had come across a question on stackoverflow which states that (UrlReferrer) won't work if pages are in https form.

my application flow

it is a 3 step registration process.

we are not allowed to pass any data through querystring.

1. after successful completion of step1, I store a value in session which is been checked on step2

2. Session is checked of step 1 and after successful completion on step2, I store a value in session which is been checked on step3.

3. Session is checked of step 2 and after successful completion on step3 it get diverted to Dashboard.

all three pages are under one project only

if (Request.UrlReferrer != null)
                    {
                        if (!Request.UrlReferrer.ToString().ToLower().Contains("/registration/step2"))
                        {
                            Response.Redirect("/registration/step1", false);
                        }
                    }
                    else
                    {
                        Response.Redirect("/registration/step1", false);
                    }